Federiosss has seen 21 bands.

Band Concerts Seen
  Metallica 4 concerts
  Foo Fighters 3 concerts
  Megadeth 3 concerts
  Alter Bridge 2 concerts
  Pearl Jam 2 concerts
  Queens of the Stone Age 2 concerts
  Red Hot Chili Peppers 2 concerts
  Alice In Chains 1 concert
  Anthrax 1 concert
  Carcass 1 concert
  Gojira 1 concert
  Greta Van Fleet 1 concert
  Guns N' Roses 1 concert
  Heaven Shall Burn 1 concert
  Irontom 1 concert
  Jinjer 1 concert
  Korn 1 concert
  Lamb Of God 1 concert
  Muse 1 concert
  Slash featuring Myles Kennedy and the Conspirators 1 concert
  Slipknot 1 concert